Constructed from a lightweight and breathable multi-mesh upper for airflow and incorporates a seamless microfiber chassis for durability and structural integrity. Innovative lacing system which includes a lace eyelet tuning system running around the ankle to the instep making a light chassis closure for precise and comfortable fit. Tongue and collar incorporate highly breathable micro perforated textile for additional cooling performance. Anti-slide Achilles' support collar, constructed from technical textile for comfort and breathability, helps keep foot in position while training/running. The toe-tip reinforcement in matt carbon microfiber gives more structure/stability and abrasion resistance. Alloy shoe features a unique, high strength sole construction offering durability, rigidity and protective performance. Technical dual midsole construction with EVA foam double layered padding for additional comfort cushioning. Internal heel counter layered under the upper for structural integrity and support. Toe, tongue and collar soft padding for comfort and fit. Alpinestars exclusive vulcanized compound outer sole with dual density EVA foam for cushioning and repeated foot-fall shock absorption. Anatomical footbed profiled with Lycra top lining and different hardness EVA foams: soft in the forefoot and harder on the arch to offer support and comfort.